Reassortment

Preparation of Vero Cell-Adapted Influenza H1N1 Virus Strain by Reassortment

以重配技术制备H1N1流感病毒Vero细胞适应株

Flu viruses mutate constantly , which is why the flu vaccine is changed every year , and they can swap DNA in a process called reassortment .

流感病毒一直在变异，同时流感疫苗也每年在变。不同流感病毒的DNA能在重配的过程中交换。

The study of the virulence of genetic reassortment viruses of Hantaviruses

汉坦病毒基因重排病毒株毒力变化的初步研究

The Study of Genetic Reassortment Among Hantaviruses

汉坦病毒基因重排的实验研究

Each additional human case increases opportunities for the virus to improve its transmissibility , through either adaptive mutation or reassortment .

每增加一例人间病例增强了该病毒通过适应性突变或重组提高其可传播性的机会。

Neuraminidase gene reassortment of low pathogenic avian influenza viruse N2 subtype among domestic ducks in Eastern China

华东地区家鸭中N2亚型低致病性禽流感病毒神经氨酸酶基因的重排

Surveillance issues related to increasing the number and timeliness of representative viruses for vaccine virus selection and candidate vaccine virus reassortment ;

在疫苗病毒的挑选和候选疫苗病毒的重组方面，与提高代表性病毒的数量和时效性有关的监测问题；

They found that A ( H1N1 ) had a biological advantage over the seasonal strains but there was no evidence of reassortment .

他们发现甲型H1N1流感病毒相对于季节流感病毒具有生物优势，但是没有重组的迹象。

Sequencing of all eight gene segments found no evidence of genetic reassortment with human or pig influenza viruses and no evidence of significant mutations .

所有八个基因片断的排序未发现证据表明与人或猪的流感病毒发生基因重组，也无证据表明发生显著突变。

Research on Gene Reassortment and Pathogenicity of Partly Reassortant Progeny Viruses of Reovirus ( Muscovy Duck ) Different Isolates

呼肠孤病毒番鸭不同分离株部分基因重组子代病毒与致病性的研究

Pandemic viruses are generated by the rearrangement ( reassortment ) of viral RNA segments in cells infected with two different strains of IAV .

造成大流行的流感病毒常常是由两种毐株的不同RNA节段在感染细胞吋发生基因重排而产生的。

A top Chinese biology lab has ascribed the H7N9 avian influenza to genetic reassortment of wild birds from east Asia and chickens from east China .

中国某生物实验室已经追踪到H7N9禽流感病毒源，该病毒的产生是因为东亚野鸟与华东家鸡基因重组。

At that point there are not just eight , but16 viral segments on assembly lines , and the genes start shuffling together in a process called reassortment .

从这个意义上来说，基因组就不只有八段了，其装配线上就有了十六段病毒基因。这些基因在被称为重组的过程中开始慢慢地混合起来。

Genotyping of the PCR-amplified isolate from the confirmed case shows high homogeneity with other H5N1 isolates from poultry in Java , and no evidence of reassortment .

对确认病例的PCR扩增分离菌进行基因型确定，显示与爪哇禽类的其它H5N1分离菌具有很高的一致性，没有重新分类的依据。

Segregation of quails from other types of birds at all levels of production was implemented to reduce the risk of reassortment between H5 influenza viruses and viruses carried by quails .

措施之一是在每一个生产程序中，都把鹌鹑与其他禽鸟分开处理，以减低鹌鹑病毒与H5流感病毒混杂的机会。

The mutation or reassortment of the swine flu influenza A ( H1N1 ) virus into a more lethal form is most likely to occur in tropical countries , researchers have warned .

科学家警告说，甲型H1N1流感病毒突变或重组变成一个更致命的病毒的情况最可能发生在热带国家。

Leading Chinese researchers say they 've been able to determine the new H7N9 strain of avian influenza is a genetic mutation caused by a reassortment of genome markers coming from wild birds and chickens in east China .

中国主要研究人员表示，他们已经可以确定新型H7N9禽流感病毒可能来自于野鸟所携带的禽流感病毒和中国东部鸡群所携带禽流感病毒发生的基因重配。

Finally , we propose a model of the origin of the third dsRNA of tri-partite partitivirus with respect to the co-infecting reassortment view , which reveals a novel evolutionary path of persistent virus .

最后，根据共侵染病毒重配的特性，我们提出了第三条dsRNA分化起源模型，揭示了双分病毒的一种进化路径。

Owing to error-prone polymerase and segmented genome of influenza virus , there is common phenomenon of mutations ( antigenic drift ) and reassortment ( antigenic shift ) for influenza virus and emergence of new variants or strains .

由于其易于出错的聚合酶和片断化基因，流感病毒基因突变（抗原漂移）、重配（抗原转移）而产生新病毒株的现象非常普遍。

The origin of the new influenza virus is very complex . It is a multiple reassortment virus . The hemagglutinin ( HA ) gene was derived from the 1918 swine influenza virus , other genes from human , avian and Europe swine influenza viruses .

这种新型的流感病毒的遗传背景十分复杂，是一种多元重组病毒，其血凝素（HA）基因源于1918年猪流感病毒，其它基因源于人、禽和欧洲猪流感病毒。